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Finding the Fourth Proportional to 73,388.60, 101,318.26 and 48,311

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Solution

The fourth proportional to 73,388.60, 101,318.26 and 48,311 is: 66,696.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,388.60 : 101,318.26 = 48,311 : x
  2. Step 2: Convert to fraction form
    73,388.60/101,318.26 = 48,311/x
  3. Step 3: Cross multiply
    73,388.60x = 101,318.26 × 48,311
  4. Step 4: Simplify right side
    73,388.60x = 4,894,786,458.86
  5. Step 5: Solve for x
    x = 4,894,786,458.86/73,388.60
  6. Step 6: Final answer
    x = 66,696.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.